dataframe-js/examples/df_benchmark.js

Immutable and functional data structure for datascientists and developpers

const Benchmark = require("simple-benchmark");
const DataFrame = require("../lib").default;
const DataFrameOld = require("../lib/dataframe_old").default;

const fakeData = Array.from(Array(10000)).map((_, i) => ({
    key: i,
    name: `FAKE-${i}`
}));

const creation = new Benchmark("Creation", 10)
    .addFunction("With schema [new]", () =>
        new DataFrame(fakeData, ["key", "name"]).toCollection()
    )
    .addFunction("With schema [new]", () =>
        new DataFrame(fakeData, ["key", "name"]).toCollection()
    )
    .addFunction("Without schema [new]", () =>
        new DataFrame(fakeData).toCollection()
    )
    .addFunction("With schema [v1.2.7]", () =>
        new DataFrameOld(fakeData, ["key", "name"]).toCollection()
    )
    .addFunction("Without schema [v1.2.7]", () =>
        new DataFrameOld(fakeData).toCollection()
    )
    .computeReport();

console.log(creation);

const instance = new Benchmark("New instance", 10)
    .addFunction("Create a new instance [1.2.7]", () =>
        new DataFrameOld(fakeData, ["key", "name"])
            .withColumn("clean-name", row => row.get("name").split("-")[0])
            .toCollection()
    )
    .addFunction("Create a new instance [new]", () =>
        new DataFrame(fakeData, ["key", "name"])
            .withColumn("clean-name", row => row.get("name").split("-")[0])
            .toCollection()
    )
    .computeReport();

console.log(instance);